Learn Intermediate Python 3 with this interactive course, and get a handle on the most popular programming language in the world.

Join us on an interactive journey through the syntax and functionality of Python. The course begins by exploring the basic building blocks before moving on to higher-level concepts such as functions and loops. Fun quizzes and coding challenges will accompany you along the way to help enforce all the concepts covered in the course.

By the time you're done, you'll have the skills you need to create your own basic applications in Python 3.

Learn Intermediate Python 3

## Problem Statement
You must implement the `count_low_high()` function. Its parameter is a list of numbers. 

If a number is greater than `50` **or** divisible by `3`, it will count as a `high`. If these conditions are not met, the number is considered a `low`.

At the end of the function, you must return a list that contains the number of lows and highs, in that order.

In case the list is empty, you may return `None`.

### Sample Input
```python
num_list = [20, 9, 51, 81, 50, 42, 77]
```

### Sample Output
```python
[2, 5] # 2 lows and 5 highs
```

## Coding Challenge

Take some time to figure out the smartest way to solve this problem. Python’s built-in functions are also available to you. Try using them to approach and solve this problem.

If you feel stuck, you can refer to the solution review in the next lesson.

Good luck!

# Problem Statement
You must implement the `count_low_high()` function. Its parameter is a list of numbers. 

If a number is greater than `50` **or** divisible by `3`, it will count as a `high`. If these conditions are not met, the number is considered a `low`.

At the end of the function, you must return a list that contains the number of lows and highs, in that order.

In case the list is empty, you may return `None`.

## Sample Input
```python
num_list = [20, 9, 51, 81, 50, 42, 77]
```

## Sample Output
```python
[2, 5] # 2 lows and 5 highs
```

# Coding Challenge

Take some time to figure out the smartest way to solve this problem. Python’s built-in functions are also available to you. Try using them to approach and solve this problem.

If you feel stuck, you can refer to the solution review in the next lesson.

Good luck!

Let's separate highs from the lows and then count both.

Introduction

Data Types and Variables

Conditional Statements

Functions

Loops

Python Exam I

Data Structures

Libraries

Appendix

Python Exam II

Exercise: Highs and Lows

Problem Statement

Sample Input

Sample Output

Coding Challenge